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MariettaO [177]
3 years ago
15

The sum of the digits of a two-digit number is 13. Twice the first digit is 1 less than the second digit. What is the two digit

number. Create a system of equations and solve.
Mathematics
1 answer:
Alex3 years ago
4 0

Answer:

6 and 7

Step-by-step explanation:

10(13-X) + X= 13-9X. 3×2=6. 7-6=1. 7+6=13

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A rocket is launched from the ground at an initial velocity of 39.2 meters per second. Which equation can be used to model the h
Naya [18.7K]

The quadratic equation that models the height of the rocket after t seconds is:

s(t) = -4.9t² + 39.2t.

<h3>What is the quadratic function for a projectile's height?</h3>

Considering the height in meters, the equation is given by:

s(t) = -4.9t² + v(0)t + h(0)

In which:

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In this problem, we have that v(0) = 39.2, h(0) = 0, hence the equation is:

s(t) = -4.9t² + 39.2t.

More can be learned about quadratic functions at brainly.com/question/24737967

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8 0
1 year ago
a geologist noticed that land along a fault line moved 24.8 cm over 175 yrs on average how much did the land move each year
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24.8 cm ÷ 175= 0.141... or 0.14 cm.
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6 0
3 years ago
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A machinist is allowed 1% tolerance on a shaft that measures 15 inches long. What is the amount of tolerance
Sauron [17]
Tolerance = 1% = 0.01 on a shaft of 15 in
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8 0
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If the diameter of a circle is 15 centimeters, what is the circumference of the circle in terms of Pi?
Nat2105 [25]
Circumference of a circle: 2 * Pi * R
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Formula to calculate the circumference:
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It’s the first option
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